<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>flex</title>

    <style>
        .quanju{
            width: 500px;
            height: 200px;
            border: 1px solid red;

        }
        .left{
            width: 100px;
            height: 200px;
            border: 1px solid coral;
            flex-wrap: nowrap;
        }
        .right{
            flex-wrap: nowrap;
            width: 400px;
            height: 200px;
            border: 1px solid coral;
        }
    </style>
</head>
<body>
<div class="quanju">
    <div class="left"></div>
    <div class="right">
        <div></div>
        <div></div>
        <div></div>
        <div></div>
        <div></div>
        <div></div>
        <div></div>
        <div></div>
    </div>
</div>
</body>
</html>